LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chpgvd_work()

lapack_int LAPACKE_chpgvd_work ( int  matrix_layout,
lapack_int  itype,
char  jobz,
char  uplo,
lapack_int  n,
lapack_complex_float ap,
lapack_complex_float bp,
float *  w,
lapack_complex_float z,
lapack_int  ldz,
lapack_complex_float work,
lapack_int  lwork,
float *  rwork,
lapack_int  lrwork,
lapack_int iwork,
lapack_int  liwork 
)

Definition at line 35 of file lapacke_chpgvd_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_chpgvd( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz, work,
48  &lwork, rwork, &lrwork, iwork, &liwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int ldz_t = MAX(1,n);
54  lapack_complex_float* z_t = NULL;
55  lapack_complex_float* ap_t = NULL;
56  lapack_complex_float* bp_t = NULL;
57  /* Check leading dimension(s) */
58  if( ldz < n ) {
59  info = -10;
60  LAPACKE_xerbla( "LAPACKE_chpgvd_work", info );
61  return info;
62  }
63  /* Query optimal working array(s) size if requested */
64  if( liwork == -1 || lrwork == -1 || lwork == -1 ) {
65  LAPACK_chpgvd( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz_t, work,
66  &lwork, rwork, &lrwork, iwork, &liwork, &info );
67  return (info < 0) ? (info - 1) : info;
68  }
69  /* Allocate memory for temporary array(s) */
70  if( LAPACKE_lsame( jobz, 'v' ) ) {
71  z_t = (lapack_complex_float*)
73  ldz_t * MAX(1,n) );
74  if( z_t == NULL ) {
76  goto exit_level_0;
77  }
78  }
79  ap_t = (lapack_complex_float*)
81  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
82  if( ap_t == NULL ) {
84  goto exit_level_1;
85  }
86  bp_t = (lapack_complex_float*)
88  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
89  if( bp_t == NULL ) {
91  goto exit_level_2;
92  }
93  /* Transpose input matrices */
94  LAPACKE_chp_trans( matrix_layout, uplo, n, ap, ap_t );
95  LAPACKE_chp_trans( matrix_layout, uplo, n, bp, bp_t );
96  /* Call LAPACK function and adjust info */
97  LAPACK_chpgvd( &itype, &jobz, &uplo, &n, ap_t, bp_t, w, z_t, &ldz_t,
98  work, &lwork, rwork, &lrwork, iwork, &liwork, &info );
99  if( info < 0 ) {
100  info = info - 1;
101  }
102  /* Transpose output matrices */
103  if( LAPACKE_lsame( jobz, 'v' ) ) {
104  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
105  }
106  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
107  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
108  /* Release memory and exit */
109  LAPACKE_free( bp_t );
110 exit_level_2:
111  LAPACKE_free( ap_t );
112 exit_level_1:
113  if( LAPACKE_lsame( jobz, 'v' ) ) {
114  LAPACKE_free( z_t );
115  }
116 exit_level_0:
117  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
118  LAPACKE_xerbla( "LAPACKE_chpgvd_work", info );
119  }
120  } else {
121  info = -1;
122  LAPACKE_xerbla( "LAPACKE_chpgvd_work", info );
123  }
124  return info;
125 }
#define LAPACK_chpgvd(...)
Definition: lapack.h:8689
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
void LAPACKE_chp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
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